#include<stdio.h>
void change(int *a,int *b)
{
	int c = 0;
	c = *a;
	*a = *b;
	*b = c;
}

int main()
{
	int a = 0;
	int b = 0;
	scanf("%d %d",&a,&b);
	change(&a,&b);
	printf("a=%d,b=%d",a,b);
	
	return 0; 
} 
